Liquid-fuel burner.



J. D. ROBERTSON LIQUID FUEL BURNER.

APPLICATION FILED JULY3, 1914.

1,128,;188. Patented Feb. 9, 1915.

2 SHEETS-SHEET 1.

W I m v "HE NORRIS PETERS C0,, PHOTOLITHOH WASHINGTON D. E.

J. D. ROBERTSON.

LIQUID FUEL BURNBR.- APPLICATION FILED JULY 3, 1914.

1,128,188, Patented Feb .9,1915.

2 SHEETS-SHEET 2.

3 M uemtoz Jfiliobertson/ THE NORRIS PETERS CO PHDTC LITHI1,-\A5H,'V1,LIN n r:

JOHN DI ROBERTSON, OF DE BIDDER, LOUISIANA.

LIQUID-FUEL BURNER.

Specification of Letters Patent.

Application filed July 3, 1914. Serial No. 848,895.

' To all whom it may concern:

De Bidder, in the parish of Beauregard.

and State of Louisiana, have invented new and useful Improvements in Liquid-Fuel Burners, of which the following is a specification.

' This invention relates to improvements in liquid fuel burners and has particular application to a burner of the retort type.

In carrying out the present invention, it is my purpose to provide a liquid fuel burner of the class described whereby the liquid fuel will be effectively heated and vaporized from the flames issuing from the burner tip or jet and wherein the component parts will be so correlated and arranged as to reduce the possibility of derangement to a minimum and enable the retort or generating tube to receive the maximum amount of heat from the burner tip or jet. It is also my purpose to improve and simplify the general construction of retort liquid fuel burners and provide a burner which may be manufactured and marketed cheaply and installed and maintained at a minimum exense.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings; Figure 1 is a view in elevation of a liquid fuel burner constructed in accordance with the present invention. Fig. 2 is a vertical central sectional view therethrough. Fig. 3 is a vertical sectional view at one burner tip and at right angles to Fig. 2. Fig. 4 is an enlarged sectional view on the line H of Fig. 1. Fig. 5 is a similar view on the line 55 of Fig. 1. Fig. 6 is a perspective view of the conducting and distributing tubes removed from the generating tube. Fig. 7 is a perspective view of a detail of the invention. Fig. 8 is a perspective view of the flame spreader.

view through one of the burners showing the same equipped with an air mixing device.

Referring now to the drawings in detail, 1 designates a generating tube which, in the present instance, is cylindrical and disposed in a horizontal plane. One end of the gen- Fig. 9 is a bottom plan view thereof. Fig. 10 is a vertical sectional erating tube 1 is closed, while the opposite end is threaded interiorly and threaded into the open end of the generating tube is a connecting nipple 2 capable of removal from the tube. Suitably fastened within the inner end of the nipple 2 and extending into the generating tube 1 parallel with the bottom portion thereof is a fluid conducting pipe 3 having the inner end thereof terminating approximately centrally of the length of the generating tube and equipped with an upwardly projecting nipple 4:. Connected to the upper end of the nipple 4 and in open communication with the fluid conducting pipe 3 is ahorizontally disposed distributing pipe 5 disposed in parallelism with the upper portion of the generating tube and having the opposite ends thereof terminating short of the ends of the generating tube and formed with discharge orifices 6. Formed in the upper portion of the tube 1 approximately centrally thereof is an aperture 7, while encircling the tube 1 at the aperture therein is an annulus 8 having the inner face thereof grooved to form a pocket 9 in communication with the interior of the generating tube by way of the aperture 7. Depending from the lower portion of the annulus 8 and in communication with the Patented Feb.9,1915.

pocket therein is a nipple 10 and threaded into the nipple 10 is the upper end of a fluid conducting tube 11. Connected with the fluid conducting tube 11 at diametrically opposite points adjacent to the lower end thereof and projecting outwardly therefrom in opposite directions are burner tubes 12, 12 having the outer ends thereof equipped with upstanding nipples 13 lying in parallel planes, and having the upper ends thereof threaded. Threaded into the upper ends of the nipples 13 are burner tips 14 having the upper walls thereof formed with discharge orifices 15. Threaded into the outer end of the nipple 2 is a fiuid supply pipe 16 equipped with a regulating valve 17. Surrounding each nipple 13 concentrically thereof is a cup-shaped priming pan 18. i

In practice, when the regulating valve 17 is open the liquid fuel enters the fluid conducting pipe 3 and passes into the distributing pipe 5 by way of the nipple 4 and flows to the opposite ends of the distributing pipe and through the orifices 6 into the generating tube 1. Waste saturated with gasolene or the like is now placed within the priming pans 18 and ignited and the flame heats the generating tube 1. When the generating tube has been heated to the necessary extent, the fuel therein vaporizes and the resulting gas flows through the aperture 7 into the pocket 9, downwardly through the fluid conducting tube 11 and then through the burner tubes 12, nipples 13 and the orifices 15 in the burner tips 14. The vapor issuing from the burner tips is now ignited and the heat units rising therefrom maintain the generating tube 1 heated thereby vaporizing the fluid within such tube to supply the burners with the necessary fuel. In order to spread the flames issuing from the burner tips flame spreaders are employed. In the present instance, each spreader comprises a circular ring 19 surrounding one end of the tube 1 and capable of sliding movement therealong and provided, at its lowermost point with a disk 20 disposed above the adjacent burner tip and having the lower face thereof convexed so that the heat units from the particular burner tip will be effectively spread. In this instance, the lower extremity of the fluid conducting tube 11 is connected with a base 21 and uprising therefrom to support the burner in proper position.

From the foregoing description taken in connection with the accompanying drawings, the construction, mode of operation and manner of employing my invention will be readily apparent. It will be seen that I have provided a liquid fuel burner wherein the liquid fuel is effectively vaporized previously to entering the burner tubes and wherein the liquid fuel is distributed within the generating tube evenly and uniformly so that the vapor issuing from the generating tube will flow into the burner tubes with uniformity.

While I have herein shown and described one preferred form of my invention by way of illustration, I wish it to be understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation maybe made within the scope of the claims without departing from the spirit of the invention.

If desired, the burner may be equipped with an air mixing device as illustrated in Fig. 10. In the present instance, each air mixing device comprises a frusto-conical tube 22 having the lower edge thereof equipped with depending feet 23 resting upon the upper edge of the pan 18 and suitably secured thereto. This tube 22 is coaxial with the burner tip and acts to regulate the air passing to the burner tip and prevent the extinguishing of the flame issuing from the burner tip incident to a sudden draft.

I claim:

1. A liquid fuel burner comprising a generating tube having an aperture in the upper portion thereof, an annulus surrounding said tube at the aperture therein and having the inner surface thereof grooved to form a pocket encircling the tube and in communi- "cation therewith at the aperture therein, a conveying tube depending from said annulus and in communication therewith, and a burner tip connected with the lower end of said conveying tube and adapted to heat said generating tube whereby the resulting vapor will pass through said grooved annulus and conveying tube into said burner tip.

2. A liquid fuel burner comprising a generating tube having an aperture in the upper portion thereof, an annulus surrounding said tube at the aperture therein and having the inner surface thereof formed to provide a pocket encircling the tube and in communication therewith at the aperture therein, a conveying tube depending from said annulus and in communication therewith, burner tubes connected to said conveying tube adjacent to the lower end thereof and projecting outwardly therefrom at diametrically opposite points and lying parallel with said generating tube, and burner tips on the outer ends of said burner tubes and adapted to heat said generating tube.

3. A liquid fuel burner comprising a generating tube having an aperture in the upper portion thereof, an annulus surrounding said tube at the aperture therein and having the inner surface thereof grooved to form a pocket encircling the tube and in communication therewith at the aperture therein, a conveying tube depending from said annulus and in communication therewith, a burner tip connected with the lower end of said conveying tube and adapted to heat said generating tube whereby the resulting vapor will pass through said grooved annulus and conveying tube into said burner tip, and a flame ,preader carried by said generating tube above said burner tip.

4:. A liquid fuel burner comprising a generating tube having an aperture in the upper portion thereof, an annulus surrounding said tube at the aperture therein and having the inner surface thereof grooved to form a pocket encircling the tube and in communication therewith at the aperture therein, a conveying tube depending from said annulus and in communicationtherewith, a burner tip connected with the lower end of said conveying tube and adapted to heat said generating tube whereby the resulting vapor will pass through said grooved annulus and conveying tube into said burner tip, and a flame spreader adjustably mounted upon said generating tube above said burner tip.

5. A liquid fuel burner comprising a generating tube having an aperture in the upper portion thereof, an annulus surrounding said tube at the aperture therein and having the inner surface thereof formed to provide a pocket encircling the tube and in communication therewith at the aperture therein, a conveying tube depending from said annulus and in communication therewith, burner tubes connected to said conveying tube adjacent to the lower end thereof and projecting outwardly therefrom at diametrically opposite points and lying parallel with said generating tube, burner tips on the outer ends of said burner tubes and adapted to heat said generating tube, and flame spreaders carried by said generating tube above said burner tips and adjustable along the tube.

6. A liquid fuel burner comprising a gencrating tube having an aperture in the upper portion thereof, a distributing pipe within said tube and communicating therewith at the opposite ends thereof, a fluid conveying pipe within said tube connected with said distributing pipe, a supply pipe connected with said last pipe, and a burner tip connected with said generating tube by way of the aperture therein and disposed beneath the generating tube.

In testimony whereof I afiix my signature in presence of two witnesses.

JNO. D. ROBERTSON.

Witnesses:

J. D. SMITH, A. J DONALDSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

